2008-04 New ice growth over winter 2007/2008

Map of estimated ice age for the third week of March for 2007 (left) and 2008 (right). Dark blue indicates first-year ice; red indicates ice that is 6 years old or more; grey is land and white indicates areas where ice age is not tracked. Colleagues James Maslanik, Chuck Fowler, and Sheldon Drobot at the University of Colorado at Boulder developed this image.—Credit: Image from National Snow and Ice Data Center courtesy Maslanik, Fowler, Drobot http://www.nsidc.org/arcticseaicenews/2008/040708.html - http://www.nsidc.org/images/arcticseaicenews/200804_Figure4.png